August heine



`(No Model.) 2 Sheets- Sheet 1.

A. HEINB.

BRAN DUSTER.'

No. 322.715. Patented July 21.1885.

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' UNITED STATES;

PATENT Grafica..

AUGUST HEINE, or srLvnR CREEK, NEW YORK.

BRAN-DUSTER.

SPECIFICATION forming part of Letters Patent No. 322,715, dated July 21, 1885 Application filed March 10, 1835.

To all whom it may concern: y j

Be it known that I, AUGUST HEINE, of Silver Creek, in the county of Chautauqua and'` State of New York, have invented new and useful Improvements in Bran-Busters, of which the following is a specification.

This invention relates to an improvement in that class of bran-dusters which consist of a rotating bolting-'cylinder and rotating brushes arranged within the same; and it has for its object to improve the construction of the machine in various respects.

My invention consists to that end of the improvements which will be hereinafter fully set forth, and pointed out in the claims.

In the accompanying drawings, consisting of two sheets, Figure 1 is a longitudinal sectional elevation of my improved bran-duster. Fig. 2 is a cross-section of the same. Fig. 3 is a cross-section in line x x, Fig. l, looking toward the head of the bolting cylinder. Fig. 4 is a section in line y y, Fig. 3, on an enlarged scale. Fig. 5 is a face view of the disintegratordisk attached to the brush-shaft. Fig. 6 is a similar view showingadifferent form of corrugations. Fig. 7 is a longitudinal section of the head end of the brush-shaft, on an enlarged scale. Fig. 8 is a sectional view of the joint at the head ofthe bolting-cylinder, on au enlarged scale. Fig. 9 is a perspective view of a section of the frame of the boltingcylinder. Figs. .10 and 11 are cross-sections in linesxx and yy, Fig. 7, respectively. Fig. 12 is a fragmentary elevation of the system of brushes.

Like letters of reference refer to like parts in the several figures.

A represents the stationary inclosing-case of the machine, provided at one end with a feed-spout, a, and at the other end with a discharge-spout, a, for the tailings.

B represents the revolving bolting-cylinder arranged horizontally in the Vcase A, and provided with two end heads, B B2, which are supported by means of hollow trunnions b b in bearings b2 b3, secured to the ,stationary case A.

C represents the revolving brush-shaft eX- tending axially through the cylinder B, and supported near both ends in bearings c c', secured to brackets c2 c3, which are attached to the stationary frame A.

(No model.)

The bolting-cylinder is composed of two semi-cylindrical portions joined together lengthwise and secured with their ends to the heads B B2. Each section of the bolting-cylinder consists of semicircularend pieces, dd', connecting longitudinal ribs d2, and a wirecloth covering, d3, secured to the inner sides of the rigid frame-work, which is composed of said end pieces and longitudinal ribs. When sections of wire-cloth of different mesh are employed in the machine, the contiguous circumferential edges of the sections are secured to a iieXible strip, d4, of leather or other simi-V lar strong flexible materiahwhich is secured to the inner sides of the longitudinal ribs d2 and extends circumferentiallyA around the inner side of the frame of the bolting-cylinder. In vusing this flexible strip instead of a rigid support the wire-cloth is left free to vibrate in response to the jars of the knocker, whereby the jarring action of the knocker is increased or is rendered more effective.

E represents a sliding cylindrical knocker, which moves in an opening, e, formed in the upper part of the casing A and rests on an annular rib, e', secured to the outer side of the bolting-cylinder. The rib e is provided with inclines c2, having abrupt ends, whereby the knocker is alternately raised and permitted to drop,thereby striking the frame of the bolting-cylinder and jarring the wire-cloth.

f is a hood secured to the front side of the head B at the feed end of the bolting-cylinder, and f is a central opening formed in the head B', through which the material is fed from the hood into the bolting-cylinder.

g is an annular channel or grooved ring secured to the inner side of the head-board of the casing A, concentric with the front edge of the hood f. The groove or recess of the ring g opens outwardly or toward the front edge of the hood f. The groove of the ring g is lined with sheep-skin or similar woolly material, g', which is cemented or otherwise secured in the groove of the ring, and which bears against the edge of the hood and forms with the latter a tight joint, which prevents the escape of fine material around the front edge of the hood. The front edge of the hood is provided with a backwardly-extending cylindrical iiange, g2, which rests against the outer side of the lining g.

formed on the inner side of the head B around the central opening, f.

H represents a disintegrating-disk secured to the shaft C near the inner side of the head B, and provided with an annular disintegrating-surface, h', which faces the annular plate h and surrounds a concave central portion, h2, which stands oppositethe feed-opening f. The material, entering the bolting-cylinder through the openingf, passes into the concave receptacle formed by the central portion of the disintegrator H, and is driven by the rapid rotation of the disintegrating-head between the annular surfaces h h', by which the material is comminuted or disintegrated, so as to detach the particles of flour from the bran. rllhe annular surfaces h h are provided for this purpose with radial or other suitable grooves or corrugations, as represented in Figs. 3, 4, 5, and 6.

I represents the brushes, which are arranged lengthwise in the bolting-cylinder, and which have a spiral twist,whereby the material is moved from the head toward the tail of the bolting-cylinder, and whereby the brushes are caused to come in contact with the wires of the wire-cloth casing at an angle which reduces the wear on the wire-cloth andon the brushes.

i represents the brush-stocks, which are pivoted at their rear ends to a head or spider, J,which is 'attached to the shaft C, and which are provided near their front ends with inclined slots k.

L is a spider,which is mounted on the shaft C near the front ends of the brushes I, and made longitudinally adjustable on the shaft. The spider L is provided with jaws or bifurcated arms Z,which carry the front ends of the brush-stocks t', and are provided with transverse bolts Z,which pass through the inclined slots 7c of the brush-stocks, so that by adjusting the spider L on the shaft C thel brushes are moved toward or from the bolting-cylinder.

m represents an adj usting-screw which is arranged lengthwise in the hollow front portion of the shaft C, and which engages with itsrear end in a threaded cylindrical block, M,which is movable backwardly and forwardly in the bore of the shaft C. The block M is attached to the spider L by a bolt, m', which passes through a longitudinal slot, m2, in the shaft (l. Thefront end of the adjusting-screw m extends beyond the shaft C and carries a handwheel, N. The adjusting-screw is held against longitudinal movement in the shaft C by a collar, o, which is formed on the adjustingscrew, and held between tubular stops o secured in the shaft C on opposite sides of the collar o, and preventing longitudinal movement of the screw while permitting it to rotate. Upon turning ,the screwm the block M and the spider L are moved forwardly and backwardly,whereby the brushes are adjusted toward or from the bolting-cylinder, as may be required.

p represents scoops or deliecting-plates secured to the brush-stocks t' in front of the brushes, so as to remove the excess of material from in front of the brushes and lift the same over the brush-stocks, leaving only so much of the material to be operated upon by the brushes as the latter can conveniently dispose of.

Q is a screw-conveyer arranged in thelowcr portion of the casing A, and having the bottom of its trough provided with suitable slides for removing the bolted material at any desired point. j

r 1^ r2 r3 represent the gear-wheels,whereby the shaft (l is rotated with an increased speed from the hollow trunnion b of the bolting-cylinder.

rlhe material to be bolted or the bran to l-e dusted enters the machine through the spout a, passes through the opening f between the disintegrator-plates, and is then acted upon by the brushes and the bolting-cylinder,whereby the fine material is detached and bolted out, while the coarse material is conveyed toward the tail end of the bolting-cylinder, from which it is discharged through an opening, s, of the head B2 into the dischargespout a.

I claim as my invention- 1. The combination, with the bolting-cylinder B, provided with a feed-opening, f', and an annular disintegrating-plate, h, surrounding the same, of the shaft C, the dished head vH, provided with an annular disintegratingplate, h, and the brushes l, secured to said shaft, substantially as set forth.

2. Aboltingcylinder composed of rigid end pieces, d d', rigid longitudinal ribs d2, connecting the same, flexible cloth supporting strips d4, secured to the inner sides of the ribs, and the bolting-cloth d3, attached to the inner side of the rigid frame and flexible supporting-strips, substantially as set forth.

3. rlhe combination, with the casing A and bolting-cylinder B, of the ring g, provided on its outer side with an annular groove containing a woollylining, g,and the hood f, secured to the bolting-cylinder and provided with a cylindrical front flange, gwhich bears against the lining g to form a tight joint, substantially as set forth. Y

4. The combination,with the brushes I, provided With inclined slots lc, of the spider L, provided with pins Z', the hollow shaft C, the sliding screw-nut M, arranged in said shaft and connected with the spider L, and the adjustingscrew m, held against longitudinal movement in the shaft and engaging in the nut M, substantially as set forth.

Witness my hand this 3d day of March,

AUG. HEIN E. Witnesses:

J. D. MERRITT, SHERMAN NEWTON.

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